I'm just beginning to wonder as the 20X CD-R drives start hitting the mainstream -- how much longer can you go with constant linear speed writing before you hit a wall? I know there is a rotational limit where the dyes begin to deform, and also physical limits where the disks actually shatter -- roughly 50x or so.
Acer's new 20X drive uses zone CLV, which I really don't understand the specifics of, but from what I've seen, it performs about the same as a 16X drive.
High speed CD-ROM drives use multiple lasers to read subsequent portions of the disk -- could this be implemented with CD-writing?
Assume you're only dealing with disk-at-once writes (forget the session control and mangement and any other non-vital orange book specs). Assume you have 2 diametrically opposed high-intensity lasers for writing. Using CAV, would it be possible to start spinning the disk as fast as possible, and begin two opposed (one at the beginning and one at the end of the track) writing streams to meet at the center of the disk?
How much threshold for error could you withstand? What's the possibility of the lasers overlapping for a sector or so once they hit the middle of the track?
If you can't do them diametrically opposed, could you design them to "leapfrog" in sector bursts? ie, begin one writing and then have the other one jump to a relatively safe position a couple hundred sectors up the track?
It's fun to think that using either method you could establish a write speed greater than 20X. Though, you'd still probably need to continually develop new dyes as your rotational speed increases.
Personally, I'd still prefer the "microwave cd-writer" -- stick in CD, press button, bright flash of light for ~1 second, take CD out. Watch your fingers, it's hot =).
Acer's new 20X drive uses zone CLV, which I really don't understand the specifics of, but from what I've seen, it performs about the same as a 16X drive.
High speed CD-ROM drives use multiple lasers to read subsequent portions of the disk -- could this be implemented with CD-writing?
Assume you're only dealing with disk-at-once writes (forget the session control and mangement and any other non-vital orange book specs). Assume you have 2 diametrically opposed high-intensity lasers for writing. Using CAV, would it be possible to start spinning the disk as fast as possible, and begin two opposed (one at the beginning and one at the end of the track) writing streams to meet at the center of the disk?
How much threshold for error could you withstand? What's the possibility of the lasers overlapping for a sector or so once they hit the middle of the track?
If you can't do them diametrically opposed, could you design them to "leapfrog" in sector bursts? ie, begin one writing and then have the other one jump to a relatively safe position a couple hundred sectors up the track?
It's fun to think that using either method you could establish a write speed greater than 20X. Though, you'd still probably need to continually develop new dyes as your rotational speed increases.
Personally, I'd still prefer the "microwave cd-writer" -- stick in CD, press button, bright flash of light for ~1 second, take CD out. Watch your fingers, it's hot =).